[chrismuk]

I have a strange noise what i can only describe as a mooing noise at around 30-40 mph when driving. It disappears out of this speed area. It doesnt seem to be coming through the speakers like interference it sounds like its coming from the engine area somewhere. Its an automatic x drive. I noticed it a while ago but not sure if its my imagination that it is getting louder.
I have checked fault codes and don't seem to have anything worth reporting.
Anyone any ideas??

I will try and get a video see if that picks it up when i can.